Identify the double displacement reactions among the following: 1. KCl(aq) AgNO3(aq) --> AgCl(s) KNO3(aq) 2. Na2SO4(aq) BaCl2(aq) -->BaSO4(s) 2NaCl(aq) 3. H2SO4((aq) 2NaOH(aq) --> Na2SO4((aq) 2H2O(l)

Write a hypothesis that answers the lesson question, “while observing a chemical reaction, how can you tell which reactant is limiting? ” hypothesis: if a substance is the limiting reactant, then . . because . .

How many grams of ammonia would be produced by the decomposition of 16.93 mlof hydrazine? (the density of hydrazine is 1.021g/ml)

How many moles of potassium hydroxide are needed to completely react with 2.94 moles of aluminum sulfate according to the following equation: